Apparatus for cleaning the sealing surfaces of coke oven doors and door jambs



P 2. 1969 w. STANKE ETAL 3,

APPARATUS FOR CLEANING THE SEALING SURFACES OF COKE OVEN DOORS AND DOOR JAMES A I Filed June 29, .1967 4 Sheets-Sheet 1 INVENTORS I ma TEE sm/KE d FIG I BY GOI'TFE/ED MERTENS Sept. 2, 1969 'w. STANKE'ETAL 3,464,074 I APPARATUS FOR CLEANING THE SEALING SURFACES 0F COKE Filed June 29, 1967 OVEN DOORS AND DOOR JAMBS 4 Sheets-Sheet 2 4 3 l3 m 5 I Y a w o lo 0 n I E a o 7 6 Lin-l6 INVENTORS WAL n-w smuxe 4 BY GOTTFRIED MiRTEW-i P 2. 1969 w. STANKE ETAL 3,464,074

APPARATUS FOR CLFANING THE Sl-lAblNG SURFACES 01" COKE OVEN DOORS AND DOOR JAMBS Filed June 29. 1967 4 SheetsSheet Z3 'r 1 i" E? 2/ 2/ FIG. 6

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INVENTOR: W41. TEE STANKE 4 BY GOTTFk/ED MERTENI;

[fie/ f 1969 w. STANKE ETAL 3,

APPARATUS FOR CLEANING THE SEALING SURFACES OF COKE OVEN DOORS AND DOOR JAMES Filed June 29, 1967 4 Sheets-Sheet 4 I N VENTORS WALTER STANKE G07'7'FR/E0 MEET-ENS brag United States Patent K 59,88 Int. Cl. Cb 25/16; B08b 13/00 US. C]. -93 Claims ABSTRACT OF THE DISCLOSURE A support frame that is movable into position for cleaning a coke oven door supports pivotal levers to which are mounted a plurality of cleaning tools. The levers are connected to vibrators that, when actuated, reciprocate the cleaning tools and they remove deposited matter from the sealing surfaces of the coke oven door A similar frame suports cleaning tools and vibrators that reciprocate the cleaning tools and thereby remove deposited matter from the door jamb. A temporary plug is movable into the coke oven doorway to prevent heat loss when the door and door jamb are being cleaned.

Background of the invention The object of the invention is an apparatus for cleaning the sealing surfaces of doors and door jambs of coke ovens by means of reciprocable cleaning tools, which are elastically pressed against the sealing surfaces and are arranged on a transportable supporting frame With such appratus the sealing surfaces are cleaned by a simple scraping effect while the cleaning tools move along the sealing surfaces. It has now been indicated that such an operation does not always lead to the desired success, particularly when the deposits on the sealing surfaces have been converted to an incrustated state by the high thermal effect of the oven chamber. Furthermore, the pasty deposits adhere to the scraper-like cleaning tools and impair their efiiciency.

Summary of the invention To eliminate these disadvantages the invention proposes providing one or more vibrators, which place the cleaning tools in vibration.

According to another characteristic of the invention these vibrators are connected with tool holders, which are movable opposite the supporting frame in the direction of cleaning and support the cleaning tools with intermediate connection of springs. Furthermore, it is recommended to provide the cleaning tools with a large number of scraping edges, tag, to use cleaning tools having a form similar to that of lattice grates. The adjacent cleaning disks are to be arranged at a right angle or at a clearance angle of 45 or less, based on the upward motion, to the to-be-cleaned surfaces.

It is directly apparent that the cleaning process is essentially intensified by the use of vibrators. Since the individual scraping edges repeatedly treat one and the same place of the sealing surface as a result of the vibrations, incrusted deposits can be satisfactorily removed thereby. The vibration also extensively loosens the pasty deposits from the cleaning tools and results in a thorough self-cleaning of the tools by the selected clearance angle of the adjacent cleaning disks.

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Brief description of drawings The invention is illustrated by way of example in the drawings, in which:

FIG. 1 illustrates a front view of an apparatus for cleaning the sealing surface of a coke oven door;

FIG. 2 is a vertical section taken along line 11-11 of FIG. l;

FIG. 3 is a vertical section taken along line IIIIII of FIG. 1;

FIG. 4 is a horizontal section taken along line IVIV of FIG. 1;

FIG. 5 is a plan view;

FIG. 6 is a front view of an apparatus for cleaning the sealing surface of a door jamb;

FIG. 7 is a vertical section taken along line VIIVII of FIG. 6; and

FIG. 8 is a horizontal section taken along line VIII VIII of FIG. 6.

Detailed description The supporting frame 1 of the door cleaning apparatus (FIGS. 1 to 5) is connected with and is transportable with the coke pushing machine and the coke guide, respectively. Pivoted levers 2 and 3 are mounted on the supporting frame and are conected by pivots 4 with both lateral longitudinal beams 5. The tool holders 7 are in turn fastened on beams S by means of springs 6-. A sliding frame 9 is connected with the vertical arm of lever 2 by means of springs 8. The guides of slide 9 are arranged at the top of the supporting frame.

The vibrations necessary for the cleaning are produced by vibrators 10, which are connected with tool holders 7 and slide 9 in such a way that the vibrations are transmitted only in the direction of cleaning, i.e., in the longitudinal direction of the sealing surfaces.

The cleaning tools 11 for cleaning the door plug 12 are spring mounted on tool holders 7. The cleaning tools 13 for cleaning the sealing membrane 14 are also connected with the tool holders by means of springs 15 so that the vibrations of the vibrators are transmitted to tools 11 and 13, and the latter elastically adjoin the to-be-cleaned surfaces.

A driving motor 16 is mounted on the supporting frame 1. By means of this driving motor 16, having an eccentric disk and crank lever, the tool holders 7 and slide 9 are moved once upwardly or reciprocably in the direction of operation by pivoted levers 2 and 3. The stroke is greater than the clearance of the disks of adja cent cleaning tools so that the cleaning surfaces of the adjacent individual tools overlap. The tool holders and slide are connected with one another by the pivoted levers so that the tools can not collide in the corners of the membrane in which the directions of cleaning proceed perpendicularly to one another.

If desired, a cleaning tool, such as the one arranged in the upper horizontal region of the membrane, can also be provided in the lower horizontal region.

The operation of the above described door cleaning apparatus is as follows:

The apparatus is moved against the door after the door is removed and swung into the cleaning position. The vibrators 10 are simultaneously switched on and the tool holders 7 and 9, and thus cleaning tools 11 and 13, are placed in vibration. The door plug 12 is first cleaned by tool 11 with the aid of these vibrations during the preliminary transportation of the door cleaning apparatus. After reaching the end position, i.e., when the tools 13 flexibly adjoin the membranes 14 with a definite pressing force, the driving motor 16 is switched on. The vertical and horizontal tools 13 are moved reciprocably in the direction of cleaning by the stroke of the eccentric and crank lever arranged on the driving motor. The length of the stroke corresponds to the necessary overlapping of the adjacent tools. After a definite adjustable number of revolutions, the driving motor is disconnected and the drive for transportation of the cleaning apparatus is connected. The cleaning apparatus is moved back to its initial position. The vibrators are then disconnected in this position.

The door cleaning apparatus and the door extracting machine are mutually interlocked in such a way that the door cleaning apparatus can be transported only when the door is in the necessary position for the cleaning process. It is apparent from this that the cleaning process can be completely automated.

The apparatus for cleaning the door jamb (FIGS. 6 to 8) is connected with the coke pushing machine and the coke guide, respectively, and is transportable by means of its supporting frame 21. A frame 22, on which are situated tool holders 23, is vertically movable on this sup porting frame 21.

The vibrations desired for the cleaning are produced by a vibrator 24, and care is taken that the vibrations are transmitted only in the direction of cleaning. The tools 25 for cleaning the inside surface 26 of the door jamb are adjustably mounted with springs in a supporting structure 27. The tools 28 for cleaning the sealing surface 29 of the door jamb are connected with the tool holders 23 by means of springs 30 so that the vibrations of the vibrator 24 are transmitted to these tools and the latter elastically adjoin the to-be-cleaned surface.

A driving motor 31 having an eccentric disk and crank lever is arranged on the supporting frame 21. The frame 22 with the tool holders 23 is reciprocable in the direction of operation by means of this driving motor 31. The cleaning surfaces of the individual adjacent tools overlap. The cleaning tools 28 are constructed in such a way that they touch the entire surface of the door jamb, i.e., the vertical and horizontal sealing surfaces.

Furthermore, on support 21 there is mounted a plug 32, which is adapted to the dimensions of the oven chambers and serves as a shield against heat and radiation.

The operation of the cleaning apparatus for the door jambs is as follows:

After removal of the coke-oven door and completion of the pushing, the apparatus is moved in front of the door jamb, during which a sufficient guide is provided by four limiting pieces in the vicinity of the hooks for receivng the lockng bars. The dimensions of the limiting pieces correspond tot hose of a coke-oven door, so that no other conditions are given for introduction of the door-jamb cleaning apparatus than for insertion of a door.

The vibrator 24 is switched on with the preliminary movement to place in vibration the frame together with the tool holders 23, and thus the cleaning tools 28. The end position is reached when the cleaning tools are situated in front of the door jamb in a flexible manner and with an adjustable pressing force. After the end position is reached, the driving motor 31 is switch on. The tools 28 are moved reciprocably in the direction of cleaning by the stroke of the eccentric and crank lever connected to the driving motor. The length of the stroke corresponds to the necessary overlapping of the tools. After a definite number of revolutions the driving motor 31 is disconnected. The drive for transportation of the door-jamb cleaning apparatus is simultaneously switched on and the latter is moved back to its initial position. The vibrator 2-4 is then also disconnected there. The inside surfaces 26 of the door jamb are cleaned in a scraping manner by tools 25 while the cleaning apparatus is introduced and removed. Tools 25 are constructed and adjustably mounted with springs so that they reach the entire surfaces 26 and can be adapted to any deformation of the door jamb.

What is claimed is:

1. Apparatus for cleaning the sealing surfaces of a coke oven door comprising:

(a) a vertical support structure adapted for movement along a coke oven battery and relative to coke oven doors thereof;

(b) a lever mounted to said vertical support structure on a pivot;

(c) a vertical frame linked to said lever and movable vertically as said lever oscillates about said pivot; (d) holders resiliently mounted to said vertical frame; (e) a plurality of cleaning elements mounted to said holders, said elements engaging the two side vertical sealing surfaces of said door when said vertical support structure is positioned operatively adjacent said door;

(if) vibratory means connected to said holders whereby saidtools are vibrated while engaging the respective surface to be cleaned and only in the direction of cleaning; and

(g) means for oscillating said lever about said pivot and moving said cleaning elements over an area of the sealing surface in contact with said element whereby said surface is cleaned, said cleaning tools moving upward on one side and downward on the other each time said lever oscillates.

2. The structure of claim 1 including:

(a) a second lever mounted to said frame on a second pivot spaced apart from said first pivot;

(b) means operatively linking said first lever to said second lever;

(c) a holder supporting cleaning elements that engage sealing surfaces at the top of said door;

(d) resilient means connecting one said lever to said holder whereby when said lever pivots said holder moves laterally with respect to the top of said door and the top of said door is cleaned.

3. The structure of claim 2 wherein:

(a) said oscillating means includes a rotatable eccentric crank connected to one said lever; and (b) means to rotate said eccentric.

4. Apparatus for cleaning the sealing surfaces of a coke oven door jamb, comprising:

(a) a supporting structure adapted for movement along a coke oven battery and positionable opposite coke oven door frames;

(b) a frame vertically movable on said supporting structure;

(c) first holders resiliently mounted to said frame;

(d) a plurality of first cleaning elements mounted to said first holders and engaging a respective area of sealing surface on said door jamb;

(e) second holders resiliently mounted to said frame;

(f) a plurality of second cleaning elements mounted to said second holders and engaging a respective area of other sealing surface on said door jamb;

g) vibratory means conected to said frame;

(h) means'to actuate said vibratory means whereby said cleaning elements vibrate only in the direction of cleaning; and

(i) means to oscillate said frame and said cleaning elements with respect to said door jamb whereby depository matter thereon is removed.

5. The structure of claim 4 including:

(a) a heat shield mounted to said supporting structure and movable into and out of the coke oven doorway as said door jamb is being cleaned.

6 .Apparatus for cleaning the sealing surfaces of doors and door jambs of coke ovens comprising:

(a) a supporting structure that is movable and positionable adjacent the surface to be cleaned;

(b) a vertically movable support member positioned adjacent said supporting structure;

(c) means linking said vertically movable support member to said supporting structure;

(d) tool holders positioned adjacent the vertically movable support member;

(e) a plurality of cleaning tools mounted to said tool holders, said cleaning tools being engageable with a surface to be cleaned;

(f) resilient means connecting said tool holders to said support member;

(g) means to reciprocate said support member vertically whereby said cleaning tools also reciprocate and clean said surfaces; and

(h) vibrataory means secured to said support member for vibrating said cleaning tools only in the direction of cleaning.

7. The invention of claim 6 wherein:

(a) said cleaning tools do not vibrate in phase.

8. The invention of claim 6 wherein:

(a) said resilient means are springs that balance the vibratory forces induced in said support member and transmitted to said support structure.

References Cited FOREIGN PATENTS 1/1966 Netherlands.

4/1966 Great Britain.

WALTER A. SCHEEL, Primary Examiner 15 LEON O. MACHLIN, Assistant Examiner 

